Headphone assembly



FIG. 1 is a perspective view of a headphone assembly according to the new design.

FIG. 2 is a front view of a headphone assembly according to the new design.

FIG. 3 is a rear view of a headphone assembly according to the new design.

FIG. 4 is a left side view of a headphone assembly according to the new design; and,

FIG. 5 is a right side view of a headphone assembly according to the new design.

Portions of the drawings shown in dashed line are for illustrative purposes only, and form no part of the claimed design. 

The ornamental design for a headphone assembly, as shown and described. 